A broadband gain material for widely tunable lasers

Author

Zhang, J.P. ; Wang, X.J. ; Choa, F.S.

Author_Institution

Dept. of Comput. Sci. & Electr. Eng., Maryland Univ., Baltimore, MD, USA

fYear

2001

fDate

11-11 May 2001

Firstpage

208

Lastpage

209

Abstract

Summary form only given. Future broadband networks using WDM technologies require a large number of wavelengths. Widely tunable MQW lasers are key elements to be used. Using the selective-area-growth (SAG) technique, one can change the MQW size and material composition simultaneously. A broader gain profile can be easily obtained. Since the photoluminenscence (PL) peak shifts along the SAG waveguide, one can potentially control the gain profile by using spatial dependent current injection. In this paper we report a semiconductor laser with more then 200 nm tuning range based on this new type of material. The grown active material consists of four 2.5 nm thick InGaAsP 1.42 quantum wells.

Keywords

gallium arsenide; gallium compounds; indium compounds; laser tuning; masks; photoluminescence; quantum well lasers; semiconductor growth; semiconductor quantum wells; waveguide lasers; wavelength division multiplexing; 2.5 nm; InGaAsP; InGaAsP QWs; MQW size; SAG oxide mask; SAG waveguide; WDM technologies; broadband gain material; broadband networks; broader gain profile; grown active material; photoluminescence peak shifts; selective-area-growth technique; semiconductor laser; spatial dependent current injection; tuning range; widely tunable lasers; Broadband communication; Composite materials; Laser tuning; Optical materials; Quantum well devices; Semiconductor materials; Tunable circuits and devices; WDM networks; Waveguide lasers; Wavelength division multiplexing;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics, 2001. CLEO '01. Technical Digest. Summaries of papers presented at the Conference on

Conference_Location

Baltimore, MD, USA

Print_ISBN

1-55752-662-1

Type

conf

DOI

10.1109/CLEO.2001.947712

Filename

947712